DOT Authority#

FMCSA Clearinghouse Instructions


Employers, owner-operators and drivers are responsible for registering in the FMCSA Clearinghouse and completing all required queries.  Express Labs does not register employers or drivers or perform Clearinghouse queries for members.

  • A Full Query must be performed before hiring new drivers
  • Annual Limited Queries must be performed for all drivers

Step 1: Registration Instructions

Register in the FMCSA Clearinghouse and designate Express Labs as your consortium.

Designate Express Labs:

  • Address: 445 Broad Hollow Rd., Suite 25, Melville, NY 11747
  • Phone: 800-341-1185

Step 2: Full Query Instructions (required for new drivers).  

Employers must conduct a full query in the FMCSA Clearinghouse to confirm drivers have no violations and are cleared to drive.  Driver's consent is required in the Clearinghouse.  Both employers and drivers must be registered in the Clearinghouse to conduct full queries.


Step 3: Limited Queries Instructions

DOT requires limited queries annually for all drivers within your pool.  Driver's written consent is required.  If a limited query returns records, a full query is required.


Clearinghouse Support

The FMCSA Clearinghouse tracks CDL driver drug & alcohol violations, refusals, and return-to-duty status.

  • Email: clearinghouse@dot.gov
  • Phone: 844-955-0207
  • Contact the Clearinghouse – View Contacts

Express Labs FMCSA Random Drug & Alcohol Consortium
Clearinghouse | Updated 2026